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75 lines
1.8 KiB
Python
75 lines
1.8 KiB
Python
from django.contrib.gis.db import models
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from django.utils.encoding import python_2_unicode_compatible
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class SimpleModel(models.Model):
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objects = models.GeoManager()
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class Meta:
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abstract = True
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@python_2_unicode_compatible
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class Location(SimpleModel):
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point = models.PointField()
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def __str__(self):
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return self.point.wkt
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@python_2_unicode_compatible
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class City(SimpleModel):
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name = models.CharField(max_length=50)
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state = models.CharField(max_length=2)
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location = models.ForeignKey(Location)
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def __str__(self):
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return self.name
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class AugmentedLocation(Location):
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extra_text = models.TextField(blank=True)
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objects = models.GeoManager()
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class DirectoryEntry(SimpleModel):
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listing_text = models.CharField(max_length=50)
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location = models.ForeignKey(AugmentedLocation)
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@python_2_unicode_compatible
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class Parcel(SimpleModel):
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name = models.CharField(max_length=30)
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city = models.ForeignKey(City)
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center1 = models.PointField()
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# Throwing a curveball w/`db_column` here.
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center2 = models.PointField(srid=2276, db_column='mycenter')
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border1 = models.PolygonField()
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border2 = models.PolygonField(srid=2276)
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def __str__(self):
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return self.name
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# These use the GeoManager but do not have any geographic fields.
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class Author(SimpleModel):
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name = models.CharField(max_length=100)
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dob = models.DateField()
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class Article(SimpleModel):
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title = models.CharField(max_length=100)
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author = models.ForeignKey(Author, unique=True)
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class Book(SimpleModel):
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title = models.CharField(max_length=100)
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author = models.ForeignKey(Author, related_name='books', null=True)
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class Event(SimpleModel):
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name = models.CharField(max_length=100)
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when = models.DateTimeField()
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